Mechanism for converting motion.



JPETERSON. v MECHANISM FOR CONVERTING MOUON.

APPLICATION FILED FEB. ll, 1916;

' AVE/W05 r /ZWM ATTORNEY J. PETERSON. MECHANISM FOR CONVERTING MOTION.

APPLICATION FILED FEB. II, 1916.

' Patented Sept. 25,1917.

LQLlfi.

4 SHEETS-SHEET 2.

WTfl/ESES: //v VENTOR A TTORIVEY J. PETERSON.

MECHANISM FOR CONVERTING MOTION. APPLICATION FILED EB. 11. 1916.

Patnted Sept. 25, 1917.

4 SHEETSSHEET 3.

WITNESSES: I l/VVEIVTOR ATTORNEY J. PETERSON.

MECHANISM FOR CONVERTING MOTION.

APPLICATION HLED 8.11.1916.

1 2% m 5 Patented Se t. 25, 1917.

4 SHEETSSHEET 4- run ATTORNEY JOHN PETERSON, OF SEATTLE, WASHINGTON.

MEGIIEIIANISIWJI FOR CONVERTING MOTION.

Specification of Letters Patent.

Patented Sept. 25, 1917.,

Application filed February 11, 1916. Serial No. 77,623.

To all whom it may concern .1

Be it knownthat T, JOHN PETERSON, a citizen of the United States, and aresident of Seattle, in the county of King and State of Washington, haveinvented certain new and useful Improvements in Mechanism for ConvertingMotion, of which the following is a full, true, and exact specification.

My invention relates to means for converting motion of the type whichconverts reciprocating motion into rotary motion and has for itsprincipal objects; to provide a device of the above described characterin which a minimum of power, is lost through journal friction; toprovide a novel form of construction embodying hubless floating gears.In a device of this general character,

it is desirable to eliminate all possible fric-- tion and for thisreason I employ ball bear ings on all. revolving bearings. The noveltyof gears without center hubs and bearings transmitting power is one ofmy features which eliminates journal friction. Other objects will appearasmy invention is more fully explained in the following specification,illustrated in the accompanying drawings and pointed out in the appendedclaims. y

In the drawings, Figure 1 is a front elevation of my device. Fig. 2 is asimilar rear elevation. Fig. 3 is an end elevation with parts omitted.Fig. 4 is an enlarged sectional front elevation with parts broken away.Fig. 5 is a diagrammatic perspective view of the gearing on one side ofthe apparatus, the respective ratchet connections 43, 44: and 45, withrespective floating gears 37, 38 and 39 being indicated in detail inside elevation below the view.

Referring more particularly to the drawings, numerals 1 and 2 indicatefront and rear frames of a casing. The front and rear frames are joinedtogether by a base 3. The front and rear frames are similar in outlineand have rounded top corners and beveled base corners. An outer casing 4covers all of the mechanism contained between the frames 1 and 2 towhich it is secured. Frames 1 and 2 are each provided with a removabledoor 5 and 6 respectively which are held in place bystraps 7. Brackets 8project from the face of frame 1- for the purpose of providing bearingsfor shafts and for supporting gear housings 9. Both front .and rearframes are provided with similarly located antifriction bearings forshafts 10,

shown) to apparatus to be driven.

11, 12, 13, 14:, 15 and 16. Frame 2 has an additional bearing for alever rock shaft 17. Similar pinions 18 and 19 are mounted on shgfts 11and 13 respectively on the outside of rear frame 2. A gear wheel 20 issecured to a shaft 21 which is mounted on a shaft lever 22 and which maybe connected by an additional shaft and universal joint '(not Shiftlever 22 is pivoted to shaft 17 at its lower end and at its upper end isprovided with latch bar 23 which cooperates with a notched quadrant 2 1which is secured to the face of rear frame 2. By means of the shiftlever, the gear 20 may be thrown into mesh with either pinion 18 or 19as desiredand as the said pinions revolve in opposite directions, aswill be explained later, it is apparent that the direction of rotationof gear 20 will be reversed when shifted from one pinion to the other.Bevel pinions 25 and 2 6 are secured to shafts 10 and 11 respectivelyand mesh with pinions 27 and 28 respectively,

both of which are secured to a shaft 29 which takes bearing in brackets8. The pinions 25 and 26 are external to frame 1. Shafts 12 and 13 areequipped similarly to shafts 10 and 11 with pinions which mesh withother pinions similar to 27 and 28 which in turn are mounted on a shaft30 which is parallel and similar to shaft 29. It is thus seen thatshafts 10 and 11 and 12 and 13 are positively geared together in'pairs.Secured to each of shafts 11, 13, 14 and 15 are pairs of gpur gears 31,32, 33 and 34 respectively whinh mesh together and form a pair ofcontinuous trains along the inner face of-frames 1 and 2. Spur pinions35 and 36 of similar diameter as pinions 31 and 32 are secured to shafts10 and 12 respectively and are located centrally between frames 1 and 2.Pairs of similarly located spur gears 37 and 38 mesh together at thevertical center plane of the machine, one of each pair with pinions 31and the other with pinions 32. The gears 37 and 38 are provided withteeth both externally and internally, the contacts just mentioned beingexternal. A pair of similar floating gears 39 also mesh in the centralvertical plane of the machine. One with each of pinions 35 and 36.Floating gears 39 are internally and externally toothed and are of thesame diameter. All of the floating gears lie in parallel verticalplanes, with the axes of gears 37 and 38, in the sme horizontal planeand the axes of the gears 39 in a similar and parallel plane. The abovementioned horizontal planes are separated by a distance less than thelength of the internal radius of either of the floating gears. It willbe apparent that the floating gears 37 and 38 lap past floating gears 39a distance somewhat less than a semicircumference. Gears 37, 38 and 39are held in line laterally by means of circumferential cooperatingflanges 40 and grooves 41 in the said gears and in pinions 31, 32, 35.and 36 and in idler rollers 42 and 42, the former of which cooperatewith gears 37 and 38 and the latter with gears 39. Pinions 31, 32, 35and 36 and idlers 42 and 42 and 43 are all located so that their axes ofrotation lie outwardly of the vertical axes planes of gears 37, 38 and39, so that the said gears are prevented from getting out of mesh witheach other and with the pinions 31, 32, 35 and 36. Shaft 16 has its axisat the intersection of straight lines which pass through the axes ofrotation of both floating gears 37 and 39 or in other words, lies in thespace between the coiiperating faces of the pairs of gears 37, 38 and39. One each of propelling pinions 43, 44 and 45 are loosely mounted onratchet shafts 46 and 47. The propelling pinionsare each freelyrotatable in only one direction as indicated by arrows in Fig.4 and areretained from rotation in the opposite direction by any approved ratchetand pawl 47 or automatic clutch means. The propelling pinions 44co6perate with the inside teeth on floating gears 39, the pinions 43cotiperate with the inside teeth of gears 37, and the pinions 45cotiperate with the inside teeth of gears 38. It will be noted that theaXes of rotation of shafts 46, 47 and 16 lie in the same horizontalplane. The ends of the shafts 46 and 47 are slidable horizontally inways 48 in frames 1 and 2. Shaft 16 has two pairs of eccentrics 49 and50 which are oppositely disposed and which work in one end of each ofstrap 51. and 52' respectively. The other ends of straps 51 and 52engage shafts 46 and 47 respectively. When shaft 16 is partially rotatedby a lever 53 the eccentrics 49 and 50 draw the shafts 46 and 47respectively either toward each other or push them farther apart as thecase may be depending on the direction in which the lever 53 is thrown.The axes of rotation of the floating gears and the propeller pinions oneach side lie in the same vertical plane when the pinions are in mid ornormal position. The pinions 43 and 44 and 45 have a limited horizontalmovement due to their long teeth and loose fit with the three floatinggears. The operation of my device embodies the alternate right and leftmovement of lever 53 with the resultant similar movement of the ratchetshafts carrying the propelling pinions which ride idly Within thefloating gears in one direction as previously pointed out and on thereturn stroke cause a rotation of their cotiperating floating gears inthe directions indicated by arrows in Fig. 4,. A rapid and continuousoperation of the propelling pinions will keep the floating gearsrevolving continuously in one direction with the resultant continuousoperation of all of the other gears and pinions of the device. The speedand constancy of velocity of the movingparts of course, will depend thereciprocating members of the machine as will also the amount of powertransmitted.

Claims:

1. In means for converting lateral motion into rotary motion, thecombination with a ratchet shaft, a plurality of pinions loosely mountedon the. ratchet shaft, a ratchet connection between each pinion and theratchet shaft, a plurality of floating gears having external andinternal teeth, the pinions meshing with the internal teeth on thefloating gears, a counter shaft, a pinion secured thereto which mesheswith the external teeth on one of the floating gears, a drivenshaft,pinions secured thereto which mesh with the other floating gears,gearing between the counter shaft and the driven shaft, and

means for laterally reciprocating the ratchet shaft to cause the pinionsthereon to impart rotary motion to the floating gears in one directionof reciprocation.

2. In means for converting lateral motion into rotary motion, thecombination of a ratchet shaft, means for laterally reciprocating theratchet shaft, a pinion loosely mounted on the ratchet shaft, a ratchetconnection between the pinion and the ratchet shaft, a floating gearhaving external and internal teeth, the pinion on the ratchet shaftmeshing with the internal teeth on the floating gear, aodriven shaft, apinion secured on the :driven shaft which meshes'with the external teethon the floating gear, and means engaging the periphery of the floatinggear for maintaining said floating gear in mesh with said pinions.

3. In means for converting lateral motion into rotary motion, thecombination of a pair. of parallel ratchet shafts, a plurality ofpinions loosely mounted on each ratchet shaft, a ratchet connectionbetween each pinion and its ratchet shaft the ratchets on the respectiveratchet shafts being arranged to permit opposite rotation of the twosetsof pinions, a pair of meshing floating gear wheels, each provided withinternal and external teeth, the internal teeth of said floating gearsmeshing with certain of the pin-.

ions on the parallel ratchet shafts, a pair of parallel counter shafts,a pinion secured to each counter shaft, said latter pinions meshing withthe external teeth on the pair of floating gears, a pair of paralleldriven shafts located in vertical planes with the .largely upon thefrequency of operation of counter shafts, a pinion secured toeach of thedriven shafts, a second pair of meshing second mentioned floating gearsmeshing with certain of the pinions on the ratchet shaft and theexternal teeth of said second mentioned floating gears meshing with thepinions on the driven shafts, gears interposed between the counter shaftand driven shaft in one vertical plane, gears interposed between theother counter shaft and driven shaft in the other vertical plane,gearing between the two driven shafts, means for conveying motion fromeither driven shaft, and 15 means for laterally reciprocating theratchet shafts toward and from each other to cause the pinions thereonto impart rotary motion to the floating gears.

JOHN PETERSON.

4 Witnesses:

W. T. CoLEMAN, HENRY-J. GINN.

